Feeding mechanism for rivet-setting machines



EQB. STIMPSON FEEDING MECHANISM FOR RIVET SETTING MACHINES Oct. 5 1926. 1,602,130

Filed May 8, 1924 2 Sheets-Sheet 1 Oct. 5 1926. 1,602,130

E. B. STIMPSON FEEDING MECHANISM FOR RIVET SETTING MACHINES Filed May 8 1924 2 Sheets-Sheet 2 'the wheel rotates.

nnwr i B. STIMESQN,

a." n w mitten nnooiiLYii; ASSIGNORTOEDWIN n s'riivirsoiv CQMPANY, onniaoonnrn, NEW YORK.

* FEEDING. mnc reivisivrron nrvnnsnrrrne Meoiniins.

Application filed May. 8;

This invention relates generally to a device for delivering rivets one-ata time and in unbroken order to a rivet setting ma chine.

A general object of provide an improved rivet feeding device of the hollow pick-up wheel type in which the rivets are fed into the pick-up member in such manner as'to facilitate the pick-up and delivery operations of the-pick-up wheel.

The invention includes a cup-shaped pick-up member provided alongits mar ginalportion with a series of rivet receiving slots so formed and arranged as to receive individual rivets which are properly disposed for the purpose inamass of'rivets resting on the slotted portion of the wheel as it, rotates. The rivets are fed into the open end of the cup-shaped pick-up member from a suitable supply hopper and'a rivet delivery chute is arranged to receive the, arranged rivets from the piclnup slots as A feature of the invention resides in the structure of the rivet supply member through which rivets are delivered into the pick-up member for arrangement and delivery thereby to the rivet delivery chute. This construction consists 'in a rivet'feeding passageway arranged to deliver rivets in a direction substantially tangential to the circular inner surfaceof the pick-up wheel and in the same general direction of movement in which the wheel travels.

Other features of the invention will be hereinafter referred to. V

In the drawings in which a preferred embodiment of the invention has been selected for illustration,

Figure 1 is a view in front elevation and partly in section of a rivet feeding device embodying the invention.

Figure 2 is a view in vertical section taken on the lines 2-2 of Figure 1 Figure 3 is a view similar to Figure '1 with a portion removed and another portion shown in section.

Figure 4 is a view in vertical section taken on the lines 44:.Of Figure 3..

Referring to the drawings for a more cletailed description of the invention, a rivet feeding device is shown which consists of a rivet supply hopper carried by a frame piece 11 in which there is journaled a shaft 12 adapted to support and rothe invention is to I 1924. sri' no; 711,762,

tate acup-shape'd rivet pick-up .member13 which is held in position against a shoulder 14 on the shaft through a wing-nut 15 and an interposed spring washer 16. i

The frame member '11 is so formed as to provide a flange or shoulder 17 within which the outer periphery of the pick-up member 13 rotates, the marginal portion of the pickup-memberbeing provided with slots 18 in which individual rivet-members 19Jare re- 'ceivedas the pick-up wheel rotates. "The rivets which are so disposed in the pile or mass as to be received'in'the slots 18 are thereupon carried-1n a clockwise direction as the device is viewed 'in Figure 1 of the drawing to the peripherally arranged passageway 20 which leads directlyinto the 'receiving end of a rivet delivery chute 21, the chute 21 leading downwardly from the feeding device to the setting mechanism of the machine with which the device is associated. A feature of the invention resides in the manner in which rivetsare delivered or supplied to the rotating piclnup member 18.

5 It will be seen that the rivet supply hopper 10 feeds directly into a passageway 22 which extends into'the' interior of member 13 and which terminates-in a delivery spout 23 havin'g'a dischargeorifice or port 2 1. It will be seen that themouth ofthe orifice 24 is so positioned within and with, respect to the adjacent surface 25 of the pick-up wheel as to deliver rivets in a direction substantially at a tangent to the direction of rotation of the pick-up wheel and also in the general direction of movement of the adjacent parts of the wheel. ,By reason of this relation of the delivery spout 23 to the inner surface of the pickup wheel 25 rivets are supplied to the pick-up wheel at a convenient location for immediate delivery of the rivets by way of the slots or passages 18 directly to the passageway or groove 20 which leads to the rivet delivery chute 21. The operation of transferring rivets from the supply hopper 10 to the delivery-chute21 is there by greatly facilitated and the uniform and uninterrupted supply of rivets to the delivery chute 21 is insured.

In operation the V cup-shaped pick-up member 13 is intermittently rotated through a step by step rotation of the ratchet wheelv 26 carried by the inner end of the shaft 12, the rotation of the ratchet 2fibeing'achieved in any desirable or suitable manner. The

,ure 8 of the drawing.

intermittent motion of the pick-up member which is thus provided has been found to be particularly suitable for the purpose in that the agitation and disturbance of the mass of rivets which is thereby obtained assists in the deposit of properly disposed rivets in the receiving slots 18.

Preferably a shield or guard member 27 is provided with the upperpart ofthe pickup member 13 and for convenience the guard member is attached directly to the forv ard faceof the hopper 10. "The guard member 27 prevents the accidental dropping of rivets into the exposed slots of the iplckup member from the outsideas well as overcoming the possibility of injury tothe hands of an operator.

In operation.therivets are delivered into the pick-up member and ,naturally jassume a pile or mass formation as indicated inFig- The rotation of the a pick-up memberproduces a tumbling action of the rivets wherein such rivets as are properly disposed for the purpose find their way into the jreceivingslots '18 and are thereby carried to delivery points adjacent the receiving end 1 of the delivery chute 21 whence they find their way to the setting device (below.

lVhat is claimed is: 1. In a rivet feeding device, a hollow rotatable rivet feeding member and means in- 3. In a rivet feedingdevice, a rotatable cup-shaped rivet feeding member having pick-up slots formed in the margin thereof, and means for delivering rivets into the feeding member including a passageway within the cup-shaped member having a discharge orifice for delivering rivets substantially tangentially of and directly into the pathot' rotation of the slotted portion of the pick-up member,

t. In arivet feeding device, a hollow rotatablerivet feeding member formed to pick up and deliver rivets disposed in a certain position, and means extending into said hollow feeding member for delivering rivets into the feeding mechanism in a direction substantially tangential to and in the directionof travel of the pick-up member.

5. In a rivet feeding device, a rotatable cup-shaped rivet feeding member having pick-up slots formed in the margin thereof, and means extending into the open end of the cup for delivering .rivets theretoin a direction substantially at a tangent to and in the direction of travel of the rotatable rivet feeding member. I V 6. In a rivet feeding device, a rotatable cup-shaped rivet feeding member having pick-up slots formed in the margin thereof,

a supporting frame memberfor the rivet feeding member, said frame member lbeing provided with a rivet delivery chute extending into said cup-shaped member for receiving rivets from said feeding member, .and said frame member having a rivet supply passage arranged to deliver rivets through the open side of said cup-shaped member and against the slotted portion in the vicinity of the receiving end of the delivery chute.

ln testimony whereof "I aflix my signature;

EDWIN B. STIMPSON. 

